Oiling system for the gear drives of gas-electric auto busses or trucks



vMay 28, 1929. T. s. KEMBLE OILING SYSTEM FOR THE GEAR DRIVES OF GAS ELECTRIC AUTO BUSSES OR TRUCKS Filed June 13, 1927 BY @a TTORNE'.

Patented May 2s, 1929.

UNITEOSTATES fome-E.;

THOMAS s. KEMBLE, OE LAKEWOOD, OHIO, ASSIGNOR. 'ro' UNIvERsAL yGrAs'Ei-.Eetcafe COMPANY, A CORPORATION OE DELAWARE.

OILING SYSTEM FOR THE GEAR DRIVES OF GAS-ELECTRICAUTO'BUSSES OR TRUCKS.

Original'application filed .Tune 30, 1924, Serial N'o. 723,772. Divided and this application led .Tune

My invention relates to the type of gearing used to transfer the power of the electric motors to the Wheels of an auto `such as is described in my copending application,

Serial No. 723,772, of which this is a di- Vision.

where there is a plain oil well or bath which extends across the bottom of the housing, there is a great loss in power due to oil turbulence, and an excessive amount of lubricant on the high speed gears in order to supply sufficient and adequate lubrication to the slow speed gears.

My invention has ly overcome these objectionable features and yet provide a construction which will per#L mit all of the gears to have ample lubrica-k tion practically in a bath of oil.

My means of accomplishing the foregoing object may be more readily understoodby having reference to the accompanying draw ings, which are hereunto annexed and are a part of this specification, in which- Fig. 1 is a vertical sectional view of my improved oil well, only a fragmentary portion of the motor being shown, as obviously it forms vno part of my invention; and

tion, showing how I divert the oil and direct it intothe desired places. Similar reference numerals refer to similar' parts throughout the entire description. Y

As shown in the drawings, the shaft 1 of the electric motor 2 has pinions 3 mounted thereon. These are high speed'pinions, and are in mesh with gears 4. The pmions 3 and gears 4 arev contained in a gear housing 5, the wall 6 of which constitutes a dam crosswise of the bottom of the gear case or housing 5. At the top of the wall 6 I form a trough 8, which is so constructed that it Awill catch the oil flowing down the wall` 7. In this trough 8 I form openings 9 through which the oil thus caught will discharge intor The' gears for its object, to entire Serial No. 198,663.

circulation of the oil. It is, however, necesfor the flow of oil in a volume enough'greater than the capacity of the tube 14, so that a proper oil level will be maintained in the oil well 10.

' sary to provide openings 9 sufficient to care In gear housings for such trains of gears,y

It will be apparent from the foregoing descript-ion, that the gears 4 will throw the oil up on to the pinions 3, and the oil will then drop down the side wall 7 into the trough 18, passing thence through the holes 9 into the oil well 10. Holes 15 are providedr in thel wall 12 to permit the oil to flow from` the oil well 10 into the compartment 16, vwhich contains the driving pinion and gear 17. As this gear 17 rotates, it will obviously throw the oil up, and it will flow down along the inside of the wall 18 and into the trough 13, thence passing through the tube 14 to the compartment 19.

It will be apparent from the foregoing that I am able in this way to maintain a continuous flow of the lubricantover all of v f the gears and pinions, yet at no time is the Flg. 2 is an enlarged detail view, 1n secaccumulation of Oil in a gear compartment sufficient to permit of churning, with the deleterious effect hereinbefore set forth.

Having described my invention, what I regard as new, and desire to secure by Letpartment therein -in which the motor pinionV and gears are mounted and a second compartment in which the drive pinion and gear arernounted, an oil wellV intermediate the two compartments, means for automatically maintaining asuitable oil level in the motor' pinion and gear compartment, while permitting a higher Alevel in the oil well in which the drive pinion and gear are mounted,.said means comprising troughs and-oil passages, substantially as described.

2. In any electric vehicular drive,lthe com-A bination, with a gear casing surrounding the f gears, of a train of gears, there being a compartment therem 1n which the motor. pinion and gears are mounted and a second compartment in which the drive pinion and gear are mounted, an oil Well Vintermediate the two compartments, a trough formed on the Wall of the first named compartment, there being openings in said trough leading to said oil Well, a trough formed on the Wall of the second compartment adjacent the driving gear, a. tube, having a passage therethrough, leading from said last named trough to the first named compartment, there being openings in the bottom of said Wall leading from the oil Well to the driving gear compartment.

THOMAS S. KEMBLE. 

